Kamstrup 66-99-279, Руководство оператора, Страница: 6 / 32

6
Pulse outputs (M1/M2)
Pulse duration
>
3.9 ms
Break 3.9 ms
Two wire connection:
Voltage
<
24 V
Load
>
1.5 k
Ω
Three-wire connection:
Voltage 5...30 V
Load
>
5 k Ω
Figure 2
The outputs are galvanically isolated •
and protected against overvoltage and
reverse polarity.
Max. counter capacity prior to overflow is
•
9.999.999 counts.
Hold input (HOLd)
Input Galvanically
isolated
Input protection Against reverse polarity
”Open input”
Count (See fig. 3)
Figure 3
Hold function 1.3
When the Hold-input is activated (input ad-
ded to high level), counting on the counted
pulses will stop.
When the Hold-signal is deactivated (input
added to low level), counting is restarted.
Counters can be reset by pressing the key
on the right hand side.
Key functions 1.4
The left-hand key is used to
change between display/
counter for the two flow
meter inputs. The display
indicates with M1 or M2
which flow meter inputs/ counters are
currently displayed.
The right-hand key is used to
reset the two counters (M1
and M2).
Amplitude 1.5 - 30 VDC
Hold Count